What is an EdCamp? According to edutopia, Edcamps are: Free to all participants; A free-flow of ideas and information about education, education technology and best practices for teachers; An unconference model of sessions throughout the day for spontaneous topics, chats and activities; The ability of being a presenter is at your discretion (and courage)
Tanning bed bulbs and lamps should be replaced when they have been used to 80 percent of their expected life cycle, and typically hit this mark about one year after they have been installed. Low-pressure lamps have a life cycle of 300 to 1,700 hours, while high-pressure bulbs last 300 to 9,500 hours.
Find out how often you should replace your mattress, duvet and pillows with our guide. Share this. Eight really is a magic number it seems, when it comes to sleep. Thereâs the optimal eight hours of shut-eye that we should all be getting (although some claim to function perfectly well on less, of course). And eight is also the figure we should keep in mind when it comes to mattresses: because we should be replacing them every eight years. âThe longer you keep the same mattress, the less comfortable it becomes,â says Lisa Bond, marketing director at Dreams.